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Five new benzylphenanthrenes from Cremastra appendiculata
Liang Liu1, Jun Li2, Ke-Wu Zeng3
1State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, PR China; Medical College, Yangzhou University, Yangzhou 225009, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, PR China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China.
Five new compounds from Cremastra appendiculata tubers, cremaphenanthrenes L-P, were identified. Compound 1 demonstrated moderate cytotoxic effects against colon, breast, and a subset of breast cancer cell lines.
Area of Science:
- Natural Products Chemistry
- Medicinal Chemistry
- Pharmacognosy
Background:
- Cremastra appendiculata tubers are a source of bioactive natural products.
- Benzylphenanthrenes represent a class of compounds with potential pharmacological activities.
Purpose of the Study:
- To isolate and characterize new benzylphenanthrenes from Cremastra appendiculata.
- To evaluate the in vitro cytotoxic effects of isolated compounds against various human cancer cell lines.
Main Methods:
- Isolation of compounds using solvent extraction and chromatographic techniques.
- Structure elucidation employing spectroscopic data (NMR, MS) and chemical methods.
- In vitro cytotoxicity assays using colon (HCT-116), cervix (Hela), and breast (MCF-7, MDA-MB-231) cancer cell lines.
Main Results:
- Five new benzylphenanthrenes, cremaphenanthrenes L-P (1-5), were successfully isolated and identified.
- Compound 1 exhibited moderate cytotoxic activity against HCT-116, MCF-7, and MDA-MB-231 cell lines (IC50: 15.84–24.18 μM).
- Compound 1 showed weak cytotoxicity against Hela cells (IC50: 68.81 μM).
Conclusions:
- Cremastra appendiculata tubers contain novel benzylphenanthrenes with cytotoxic potential.
- Compound 1 is a promising lead for further investigation in anticancer drug development.
- The study contributes to the understanding of the chemical constituents and bioactivity of Cremastra appendiculata.
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